A Winter Storm Warning remains in effect for Grundy County until 11 a.m. Wednesday.
The National Weather Service said that Grundy County remains under the warning. While the snowfall was ending in the morning, blowing snow is expected to continue for several hours as winds are expected to be 20 to 30 mph. Total accumulations are expected to be 3 to 6 inches, with isolated higher totals.
Travel will likely be treacherous, according to the weather service.
As of 7 a.m., the state said that Interstate 80 from LaSalle to Joliet, as well as from Joliet to Interstate 294, was reported as being 100 percent snow or ice covered.
Interstate 55 was reported to be snow or ice covered from Pontiac to Joliet, as well as from Joliet to I-355.
The Illinois State Police District 5, which covers Grundy, Kendall and Will counties, issued a news release Tuesday night urging motorists to expect deteriorating road conditions and to allow for extra travel time to accommodate for the roads.
Additionally, a flood advisory is in effect until Saturday, according to the weather service, for the Kankakee River near Wilmington affecting Grundy and Will counties. At 8:45 a.m. Tuesday the river was at 4.3 feet, according to the advisory. It's expected to rise to near 5.3 feed by early Thursday morning. Action state is 5 feet, according to the weather service, and flood stage is 6.5 feet.